Okular is a powerful, multi‑platform document viewer that goes beyond PDFs. It supports comics, ePub books, images, Markdown, and more — all in one sleek interface.

📖 Read PDFs, comics, and ePub books

🖼️ Browse images and visualize Markdown documents

📝 Annotate your PDFs with ease

✍️ First‑class signature support

💻 Fast, feature‑packed, and cross‑platform (Windows & Linux)

Perfect for: Users who want a versatile, free, and open‑source document viewer that handles almost any format.